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calluna_vulgaris_l._hull [2017/10/19 21:03]
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calluna_vulgaris_l._hull [2017/10/19 21:06] (aktuell)
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| "Found exclusively in Calluna vulgaris honeys, phenylacetic acid appears as a major aroma compound, its approximate concentration varying from 7.5 to 168 µg/g... this marker proved to be an odorant in our sniffing assessments of Calluna vulgaris honey extracts...\\ | "Found exclusively in Calluna vulgaris honeys, phenylacetic acid appears as a major aroma compound, its approximate concentration varying from 7.5 to 168 µg/g... this marker proved to be an odorant in our sniffing assessments of Calluna vulgaris honey extracts...\\ |
| ... it emerges that two 3,5,5-trimethylcyclohex-2-ene derivatives are predominant in Ericaceae-family honey samples, especially Calluna vulgaris samples. Two other compounds of similar structure were found exclusively in Calluna vulgaris samples: [[http://pubchem.ncbi.nlm.nih.gov/compound/688492|dehydrovomifoliol]] (4-hydroxy-4-[3-oxo-1-butenyl]-3,5,5- trimethylcyclohex-2-en-1-one) and 4-(3-oxo-1-butynyl)-3,5,5-trimethylcyclohex-2-en-1-one. The dehydrovomifoliol contents determined in this study ranged from 31 to 310 µg/g. Similar concentrations have been reported for European heather honeys (Calluna or unspecified): 70±340 µg/g 2,4-dichlorobenzaldehyde equivalent and for New Zealand Calluna vulgaris honeys: 107±185 µg/g 3-phenylprop-2-enoate equivalent. Dehydrovomifoliol, the direct precursor of aroma compounds such as vitispirans and theaspirans, is again suspected to result from abscissic acid degradation. As for 4-(3-oxo-1-butynyl)-3,5,5-trimethylcyclohex-2-en-1-one, it was detected in Calluna vulgaris honeys at concentrations ranging from 8 to 890 µg/g decane equivalent. This compound has been isolated from New Zealand Calluna honeys where its concentration was found to range from 1100 to 1400 µg/g 3-phenylprop-2-enoate equivalent. This 3,5,5-trimethylcyclohex-2-ene derivative can be considered a speci®c marker of Calluna vulgaris honeys." \\ | ... it emerges that two 3,5,5-trimethylcyclohex-2-ene derivatives are predominant in Ericaceae-family honey samples, especially Calluna vulgaris samples. Two other compounds of similar structure were found exclusively in Calluna vulgaris samples: [[http://pubchem.ncbi.nlm.nih.gov/compound/688492|dehydrovomifoliol]] (4-hydroxy-4-[3-oxo-1-butenyl]-3,5,5- trimethylcyclohex-2-en-1-one) and 4-(3-oxo-1-butynyl)-3,5,5-trimethylcyclohex-2-en-1-one. The dehydrovomifoliol contents determined in this study ranged from 31 to 310 µg/g. Similar concentrations have been reported for European heather honeys (Calluna or unspecified): 70±340 µg/g 2,4-dichlorobenzaldehyde equivalent and for New Zealand Calluna vulgaris honeys: 107±185 µg/g 3-phenylprop-2-enoate equivalent. Dehydrovomifoliol, the direct precursor of aroma compounds such as vitispirans and theaspirans, is again suspected to result from abscissic acid degradation. As for 4-(3-oxo-1-butynyl)-3,5,5-trimethylcyclohex-2-en-1-one, it was detected in Calluna vulgaris honeys at concentrations ranging from 8 to 890 µg/g decane equivalent. This compound has been isolated from New Zealand Calluna honeys where its concentration was found to range from 1100 to 1400 µg/g 3-phenylprop-2-enoate equivalent. This 3,5,5-trimethylcyclohex-2-ene derivative can be considered a specific marker of Calluna vulgaris honeys." \\ |
| [Floral origin markers of heather honeys: Calluna vulgaris and Erica arborea., Guyot, C., Scheirman, V., Collin, S., Food chemistry, Vol.64(1), 1999, 3-11] \\ | [Floral origin markers of heather honeys: Calluna vulgaris and Erica arborea., Guyot, C., Scheirman, V., Collin, S., Food chemistry, Vol.64(1), 1999, 3-11] \\ |
| [[http://www.uclouvain.be/cps/ucl/doc/inbr/documents/floral.pdf]] | [[http://www.uclouvain.be/cps/ucl/doc/inbr/documents/floral.pdf]] |
